浅析雅达油田Gadavan地层井径扩大问题  

A Simple Analysis for the Hole Enlargement of Gadavan Formation in Yadavaran Oil Field

作　　者：洪航海 

机构地区：[1]中石化胜利石油工程有限公司钻井工程技术公司,山东东营257064

出　　处：《山东化工》2015年第19期77-79,共3页Shandong Chemical Industry

摘　　要：在伊朗雅达油田的施工中,Gadavan地层都有不同程度的井径扩大的问题。Gadavan地层岩性为泥岩、灰色泥页岩和泥质灰岩等,泥质成分主要是以蒙脱石为主的伊蒙混层。本文通过对F10等五口井的井径及主要原因分析等资料的分析,通过室内试验对处理剂的优选,挖问题根源,找处理思路,从抑制、封堵等方面对解决井径扩大问题提出合理化建议。The problem of hole enlargement of Gadavan formation was occurred in every well in Yadavaran oilfield. The lithology of Gadavan is mudstone,gray mud shale,argillaceous limestone and so on. And the argillaceous component mainly is montmorillonite on the illite-smectite mixed-layer. This article based on the data of five wells would dig out the root causes and seek treatments from such as inhibition,sealing aspect by research to put forward reasonable suggestions to solve the problem of hole enlargement.

关 键 词：井径扩大 泥页岩 抑制 封堵 

分 类 号：TE254[石油与天然气工程—油气井工程]